Cramps

Hi ladies, I'm currently approx 6w2days and have had quite painful cramps the last few days. They feel like menstrual cramps but I'm not bleeding or spotting all. They tend to mostly happen late eve or in the night. Anyone any insight into whether this is normal? I'm scared as my last pregnancy ended in MC at 6 weeks so any reassurance would be appreciated . I've booked a private scan for Sunday so will know more then. Thanks